| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [noun pl] could be [vb pp] | 2970 |
|
| 2 | could be [vb pp] [adj] | 239 |
|
| 3 | [noun pl] could be [adj] | 232 |
|
| 4 | [noun pl] be [vb pp] [adj] | 25 |
|
